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(Model.) 2 Sheets-s116815 1.

J. MORRISON. l

lINJEGTQR.

No. 514,093. .Patented Feb. 6, 1894.-

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No.v 514,093. Patfmfed Feb. 6, 11894.

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JAMES MORRISON, OFTORONTO, OANADA.

INJECTOR.

l SPECIFICATION forming part of LettersPatent No. 514,093, datedFebruary 6, 1894.

Application led May 18, 1893. Serial No. 474,642. (Model) T a/ZZ whom itmay concern,.-

Beit known that 1 J AMES MORRISON, of the city of Toronto, in theVcounty of York and Province of Ontario, Canada, have invented a certainnew and useful Improvement in Injectors, of which the following is aspecification.

My invention relates toan improvement upon what is known as the Hancockinspirator, and the object of the invention is to provide' simple andeffective means by which the operating valves are controlled by a singlelever, and it consists, in the peculiar construction, arrangement andcombinations of parts hereinafter more particularly described and thendefinitely claimed.

In the accompanying drawings- Figure 1, is a sectional elevation of myimproved injector with the steam valves closed. Fig. 2, is a similarview with the steam valves open. Fig. 3, is a detail showing the mannerof connecting the steam valves to the sliding stem.

Referring now to the details of the drawings by letter, A represents ahand lever pivoted to the post B, the latter being secured to the casingB of the injector. The casing B is preferably made of two parts. b bconnected together by the passage-ways N N. Each of these two parts b bis also divided into two parts, the divisions being formed by the valveseats H I-I, the latter being on the same plane with each other. Slidingover these valve seats H H are two valves F F which are secured by thepins G to the stem C, the latter passing through both parts b bof theinjector and through the stufng box D andis pivotally connected to thehand lever A. On reference to Fig. 1, it will be noticed that when thevalve in part bis centrally over the orifice I the other valve is seteccentrically over the orifice I in part h; thus allowing steam to passthrough the orifice I before the oriceI is uncovered. The upper end ofpart b is arranged to receive fittings to connect with the steam supplywhile the lower end of said part b is the inlet for the water. Thepassage-way N which connects the parts b b is continued through into thelower end of part b and is turned upwardly and extends upto the bottomof the orifice I in valve seat H. At the lower end of part b is theoutlet for the water and from this outlet is an annular projection nwhich extends nearly up to the orifice I. From the side of this samepart b is the overflow M, which is arranged to be opened and closed by avalve L on the end of the sliding stem J which stem is connected to thelower end of the hand lever A.

The operation of my device is as follows: 6o The hand lever A is movedslightly outward sufficiently only to open the orifice I', allowing thesteam to enter said orifice and pass .through the passage-way N to theoverflow,

thus producing the necessary vacuum to lift the water into the injector.When the water is raised so far that it flows through the overflow, thehand leverA is moved to the end of its stroke, thereby moving the valveF from the orifice I, so as to admit steam and force 7c.y the waterthrough said orifice, andl simultaneonsly the inward movement of thesliding stem J closeslthe overflow valve L, thus putting my injectorinto complete action by the movement of a single lever.

What I claim as new is- 1. In an injector, a two-part casing, apassage-way connecting said two parts, a slide valve in each of saidparts arranged to open and close the steam ports, a slidingstem pass-8cy ing through said two parts and having said valves secured thereto bypins projecting from their backs, a second stem passing into saidinjector and having a valve thereon to open and close the overflow, apost projecting from said casing between said stems, and a hand leverpivoted to said stems and post, whereby a single movement of said leversimultaneously moves all ot' said valves, substantially as described.

2. In an injector, a two-part casing, a passage-way connecting said twoparts, a valve seat in each of said parts, a stem having two valvesindependently secured thereto on the Same plane with each other andadapted to 95 slide over said valve seats, the valves being so arrangedthat one is partly open while the other is shut, substantially asdescribed.

3. In an injectpr, a two-part casing, a passage-way connecting said twoparts, a valve roo seat in each of said parts arranged on the same planewith each other, a sliding stem extending through each of said parts,avalve in each of said parts, each of said valves secured to said stemand so arranged that one of them is partly open while the other isentirely shut, a second stem passing into said easing and arranged toopen and close the overiow port, in combination with a hand le verconnected with and pivoted between said stems, whereby a single movementof said lever will simultaneously move all of said valves, substantiallyas described.

4. In an injector, a casing consisting of two parts ZJ b', a passage-wayN connecting said two parts, a valve seat in each of said parts on thesame plane with each other, a sliding stem passing into each of saidparts and having valves secured thereto, arranged to open and close theorifices in said valve seats, a

In presence of JNO. BROWN, J. EDW. MAYBEE.

